一种基于结构相似度的杂波尺度

被引:3
作者
何国经
张建奇
刘德连
常洪花
机构
[1] 西安电子科技大学技术物理学院
关键词
结构相似度; 杂波尺度; 自动目标识别;
D O I
暂无
中图分类号
TP391.41 [];
学科分类号
080203 ;
摘要
为定量研究光电场景杂波,提出了一种新的杂波尺度.首先建立目标结构特征空间,将背景矢量向之投影,通过衡量投影矢量的归一化长度评价背景与目标的相似度,实现对杂波的定量度量.与以往的杂波度量方法相比,该尺度通过强调空间分布特征,剥离灰度分布影响,有效抑制环境因素变化对杂波评估稳定性的影响,同时通过以目标作为参照物,降低对背景描述的要求,使对不同场景的杂波度量有很好的适应性.实验数据分析表明,该杂波尺度能较好地预测目标与背景在结构上的相似程度以及结构相似度随距离的变化关系.
引用
收藏
页码:166 / 170
页数:5
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